Confederate flag supporter Jerry Gray of Conyers, Ga., is held back by a fellow supporter as he yells at Ku Klux Klan members to go home during a rally at Stone Mountain Park in Stone Mountain, Ga., on Saturday.

A firefighter killed by a wildfire in Northern California became trapped by the erratic, wind-stoked blaze while he was scouting an area to decide how best to attack the flames, a U.S. Forest Service official said Saturday.

The World Health Organization has asked the IOC to analyze virus levels in Rio de Janeiro's Olympic waters, and the governing body of world sailing says it will start doing its own independent virus tests.